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受欢迎的代数 >

(p+3)^2=3(15+2p)

解答

(p + 3)^{2} = 3 (15 + 2 p)

解答

p = 6, p = - 6

求解步骤

(p + 3)^{2} = 3 (15 + 2 p)

展开

(p + 3)^{2} : p^{2} + 6 p + 9

展开

3 (15 + 2 p) : 45 + 6 p

p^{2} + 6 p + 9 = 45 + 6 p

将

9

到右边

p^{2} + 6 p = 6 p + 36

将

6 p

para o lado esquerdo

p^{2} = 36

对于

x^{2} = f (a)

解为

x = f (a), - f (a)

p = 36, p = - 36

36 = 6

- 36 = - 6

p = 6, p = - 6

作图

流行的例子

3 x^{2} + x = \frac{2}{3}

7(x^2+10)=5x^2+80

7 (x^{2} + 10) = 5 x^{2} + 80

(-x-2.5)(2x+3)=0

(- x - 2.5) (2 x + 3) = 0

(s^{2} - s + 4) = 0

25 k^{2} + 36 k + 9 = 6 k